<template>
   <el-container class="home-container">
       <!-- 头部 -->
    <el-header>
        <div>
            <img style="width:50px;height:50px;" src="../assets/logo.png" alt="" srcset="">
            <span>电商后台管理系统</span>
        </div> 
        <el-button type="info" @click="logout">退出</el-button> 
    </el-header>
    <!-- 主体 -->
    <el-container>
        <!-- 侧边栏 -->
        <el-aside :width="isCollapse?'200px':'64px'">
            <div class="toggle-button" @click="toggleCollapse">|||</div>
            <el-menu
                background-color="#333744"
                text-color="#fff"
                active-text-color="#409BFF"
                unique-opened
                :collapse="!isCollapse"
                :collapse-transition="false"
                router
                :default-active="activePath"
                >
                <!-- 一级菜单 -->
                <el-submenu :index="item.id + ''" v-for="item in menuList" :key="item.id">
                    <!-- 一级菜单模板区域 -->
                    <template slot="title">
                        <!-- 图标 -->
                        <i :class="iconsObj[item.id]"></i>
                        <!-- 文本 -->
                        <span>{{ item.authName }}</span>
                    </template>
                    <!-- 耳机菜单 -->
                   <el-menu-item :index="'/'+subItem.path" @click="savaNavState('/'+subItem.path)" v-for="subItem in item.children" :key="subItem.id">
                       <template slot="title">
                            <!-- 图标 -->
                            <i class="el-icon-menu"></i>
                            <!-- 文本 -->
                            <span>{{ subItem.authName }}</span>
                        </template>
                   </el-menu-item>
                </el-submenu>
              
                </el-menu>
        </el-aside>
        <!-- 右侧内容主题 -->
        <el-main>
            <!-- 增加一个 路由占位符 -->
            <router-view></router-view>
        </el-main>
    </el-container>
    </el-container>
</template>

<script>
export default {
    data(){
        return {
            //菜单数据
            menuList:[],
            iconsObj:{
                '125':'el-icon-s-promotion',
                '103':'el-icon-s-ticket',
                '101':'el-icon-s-open',
                '102':'el-icon-s-marketing',
                '145':'el-icon-s-opportunity',
            },
            isCollapse:true,
            activePath:'',
        }
    },
    created(){
        if(window.sessionStorage.getItem('path')) this.activePath = window.sessionStorage.getItem('path')
        this.getMenuList();
    },
    methods:{
        logout(){
            window.sessionStorage.clear("token");
            this.$router.push('/login');
        },
        async getMenuList(){
            const {data:res} = await this.$http.get('menus')
            if(res.meta.status != 200) return this.$message.error(res.meta.msg)
            this.menuList = res.data
            console.log(this.menuList)
        },
        toggleCollapse(){
            this.isCollapse = !this.isCollapse
        },
        //保存导航选中状态
        savaNavState(path){
            window.sessionStorage.setItem('path',path);
            this.activePath = path;
        }
    }
}
</script>
<style lang="less" scoped>
    .home-container{
        height: 100%;
    }
    .el-header{
        background-color:#373d41;
        display: flex;
        justify-content: space-between;
        align-items: center;
        color: #fff;
        font-size: 20px;
        padding-left:0;
        >div{
            display: flex;
            align-items: center;
            span{
                margin-left: 10px;
            }
        }
    }
    .el-aside{
        background-color:#333744;
        .el-menu{
            border-right: 0;

        }
    }
    .el-main{
        background-color:#eaedf1;
    }
    .toggle-button{
        background: #4a5064;
        font-size: 10px;
        line-height: 24px;
        color: #fff;
        text-align: center;
        letter-spacing: 0.2em;
        cursor: pointer;

    }
</style>